[NTG-context] adapt fontsize to given width

[Wolfgang Schuster]

> Am 14.01.2015 um 20:36 schrieb Pablo Rodriguez <oinos at gmx.es>:
> 
> On 01/14/2015 06:58 PM, Wolfgang Schuster wrote:
>>> [...]
>>> Is there a way to make ConTeXt automatically calculate the size of the
>>> \setupbodyfont, so that the passage fits exactly to text width?
>> 
>> \starttext
>> \WidthSpanningText{My Title}{\textwidth}{Serif}
>> \WidthSpanningText{My Title}{12cm}{MonoBold}
>> \WidthSpanningText{My Title}{14cm}{SansItalic}
>> \stoptext
> 
> Many thanks for your reply, Wolfgang.
> 
> That was what I was looking for.
> 
> There is a minor issue with alignment:
> 
>    \starttext
> 
>    \startalign[center]
>    \widthspanningtext{text}{.5\textwidth}{Serif}
>    \stopalign
> 
>    \hfill\widthspanningtext{text}{.5\textwidth}{Serif}
> 
>    \stoptext
> 
> Am I missing something or is \hfill the only way to align the contents
> from \widthspanningtext?

Use

    \midaligned{\WidthSpanningText{…}{…}{…}}

or

    \startlinealignment[middle]
        \WidthSpanningText{…}{…}{…}
    \stoplinealignment

Wolfgang